From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by dpdk.space (Postfix) with ESMTP id 5D56AA05D3 for ; Mon, 25 Mar 2019 20:16:00 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 4C6AE3256; Mon, 25 Mar 2019 20:16:00 +0100 (CET) Received: from mellanox.co.il (mail-il-dmz.mellanox.com [193.47.165.129]) by dpdk.org (Postfix) with ESMTP id 231ED3256 for ; Mon, 25 Mar 2019 20:15:56 +0100 (CET) Received: from Internal Mail-Server by MTLPINE1 (envelope-from yskoh@mellanox.com) with ESMTPS (AES256-SHA encrypted); 25 Mar 2019 21:15:51 +0200 Received: from scfae-sc-2.mti.labs.mlnx (scfae-sc-2.mti.labs.mlnx [10.101.0.96]) by labmailer.mlnx (8.13.8/8.13.8) with ESMTP id x2PJFmir012764; Mon, 25 Mar 2019 21:15:50 +0200 From: Yongseok Koh To: shahafs@mellanox.com Cc: dev@dpdk.org, stable@dpdk.org Date: Mon, 25 Mar 2019 12:15:42 -0700 Message-Id: <20190325191545.20707-2-yskoh@mellanox.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20190325191545.20707-1-yskoh@mellanox.com> References: <20190307073314.18324-1-yskoh@mellanox.com> <20190325191545.20707-1-yskoh@mellanox.com> Subject: [dpdk-stable] [PATCH v2 1/4] net/mlx5: fix memory event on secondary process X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches for DPDK stable branches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: stable-bounces@dpdk.org Sender: "stable" As the memory event is propagated to secondary processes, the event is processed redundantly. This should be processed once because the data structure used for MR and the event is global across the processes. Fixes: 974f1e7ef146 ("net/mlx5: add new memory region support") Cc: stable@dpdk.org Signed-off-by: Yongseok Koh --- drivers/net/mlx5/mlx5.c | 5 +++-- drivers/net/mlx5/mlx5_mr.c | 2 ++ 2 files changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c index ae4b71695e..dd29eba955 100644 --- a/drivers/net/mlx5/mlx5.c +++ b/drivers/net/mlx5/mlx5.c @@ -157,9 +157,10 @@ mlx5_prepare_shared_data(void) if (rte_eal_process_type() == RTE_PROC_PRIMARY) { LIST_INIT(&mlx5_shared_data->mem_event_cb_list); rte_rwlock_init(&mlx5_shared_data->mem_event_rwlock); + rte_mem_event_callback_register("MLX5_MEM_EVENT_CB", + mlx5_mr_mem_event_cb, + NULL); } - rte_mem_event_callback_register("MLX5_MEM_EVENT_CB", - mlx5_mr_mem_event_cb, NULL); } rte_spinlock_unlock(&mlx5_shared_data_lock); } diff --git a/drivers/net/mlx5/mlx5_mr.c b/drivers/net/mlx5/mlx5_mr.c index 700d83d1bc..d336a77e40 100644 --- a/drivers/net/mlx5/mlx5_mr.c +++ b/drivers/net/mlx5/mlx5_mr.c @@ -891,6 +891,8 @@ mlx5_mr_mem_event_cb(enum rte_mem_event event_type, const void *addr, struct mlx5_priv *priv; struct mlx5_dev_list *dev_list = &mlx5_shared_data->mem_event_cb_list; + /* Must be called from the primary process. */ + assert(rte_eal_process_type() == RTE_PROC_PRIMARY); switch (event_type) { case RTE_MEM_EVENT_FREE: rte_rwlock_write_lock(&mlx5_shared_data->mem_event_rwlock); -- 2.11.0